Power plate-printing press.



No. 813,241. PATENTBD PEB. 20, 1906.

' H. J. SGHOEN.

POWER PLATE PRINTING PRESS. APPLIOATION FILED JUNE a, 1905.

3 SHEETS-SHEET 1.

No. 813,241.' PATENTED PEB. 20, 1,906.

' H. J. SCHOEN.

POWER PLATE PRINTING PRESS.

APPLICATION FILED JUNE 8, 1905 3 SHEETS-SHEET 2.

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H. J. SCHOEN. POWER PLATE PRINTING PRESS.

3 SHEETS-SHEET 3.

APPLIGATION FILED .TUNE 8, 1905.

H if 1 HERMAN J. SOHOEN, OF BROOKLYN, NEX/V YORK.

POWER PLATE-PRNTIING PRESS.

Specification of Letters Patent.

Patented Feb. 20, 1906.

Application filed J une 8, 1905. Serial No. 264,259.

To a/ZZ whom it may concern:

Beit known that I, HERMAN J. SCHOEN, a citizen of the United States, anda resident of Brooklyn, in the county of Kings and State of New York,have invented certain new and useful Improvements in PowerPlate-Printing Presses, of which the following is a specification.

My invention relates to power printingpresses, particularly to thatclass known as power plate-printing presses.

It has for its object to provide a power plate-printing press havingmeans for automatically inking, rough-wiping, and polishing the plate.

It has for a further object to provide a device of the character setforth embodying advantages in point of perfect operation, simplicity,and strength.

ln the drawings, Figure 1 is a side elevation of my improved press. Fig.2 is a rear elevation of the same. Fig. 3 is a fragmentary detailsectional view, on an enlarged scale, showing the inking, rough-wiping,and polishing mechanism. Fig. 4 is a fragmentary detail sectional viewon the line 4 4 of Fig. 3 looking in the direction of the arrow. Fig. 5is a fragmentary sectional view taken on the line 5 5 of Fig. 4 lookingdownward. Fig. 6 is a diagrammatic view showing the means for operatingthe powdering pad. Fig. 7 is a perspective view of the powderingpaddetached. Fig. 8 is a fragmentary sectional view, on an enlarged scale,taken on the line 8 8 of Fig. l looking forward. Fig. 9 is a fragmentarysectional view, on an enlarged scale, taken on the line 9 9 of Fig. 1,showing the guideways for the reciprocating plank.

ln all the figures of the drawings illustrating my invention likereference characters designate corresponding parts.

Referring to the drawings, 1 designates the supporting-frame, comprisinga base-plate 2, spaced rear vertical plates 3, and spaced front verticalplates 4.l

The driving-shaft 5 is mounted betweenv one of the plates 3 and thestandard-bearing 6 and carries the usual drive-pulley 7, idler 3, andfly-wheel 9. On the inner end of the drive-shaft 5 is keyed thedrive-gear l0, meshing with larger gears 11 and 12. The gear 11 ismounted on the horizontal crossshaft 11a, which has a similar gearmounted on its opposite end, transmitting power through an idle gear 14,mounted on the stub-shaft 14a, to the gear l5, which is a counterpart ofthe gear 12. It is obvious from the foregoing description that the gearsl2 and 15 will be caused to rotate simultaneously at the same speed andin the same direction, thus causing the box-cams 16 and 17, carried onshort shafts 18 and 19, respectively, keyed to the gears 12 and 15,respectively, to rotate simultaneously and at the same speed.

The rollers 20 and 21, mounted on the laterally-projecting pins 22,travel in the camgrooves 23 of the box-cams. The pins 22 are formedintegral with the lever-arm 24, the forward end of which is mounted on afixed pivot 25, while the rearward end 26 has pivoted thereto a link 27,which in turn is pivoted at 28 to a reciprocatory arm 29, having a slot291L in its rear end engaged by a fixed cross-pin 30 and having apivotal connection at 31 with the reciprocatory plank 32. It will beunderstood that through the rotation of the box-cams 16 and 17 the arm.24 will be turned on its pivot and its rear end through the medium ofthe link 27 and slotted arm 29 will lower and raise the plank carryingthe plate.

Wrist-pins 33 are provided on the gears 11 and 13 and carry rearwardends of rods 34,

, the forward ends of which are carried on pins 35, projecting laterallyfrom the pivoted impression-block 37.

l will now describe the means for inking, rough-wiping, and polishingthe plate from which an impression is to be taken and which is firmlysecured to the plank 32 in any suitable manner and is therefore carrieddown with it in its descent, but does not touch the rough-wiper orpolishers as it descends, but only when coming up after leaving theinkingroll. All of this mechanism is driven through a small gear 38,fixed to a short shaft 39, which carries a worm 40. This worm 40,meshing with a worm-wheel 41, causes the horizontally-disposed shaft 42to rotate. The forward end of this shaft carries a bevel-gear 43, whichmeshes with a bevel 44, fixed to a shaft 45, carrying a spool 46, onwhich the rough-wiping material is wound after being used. Power isimparted to the vertical shaft 47 through the medium of the gear 48,mounted on its lowermost end, and the upper end of said shaft carries adouble bevel 49, meshing with a bevel 50 and a bevel 51. The bevel 50 isfixed to a cross-shaft 51a, having a gear 52 secured on its inner endand meshing with a similar gear 53, mounted on IOO IIC)

the shaft 54. This shaft 54 is mounted in suitable bearings and carrieson its rear end the gear 55, meshingl with gears 56 on the ends ofshafts 57, mounted on the reciprocatory sliding boX 58 and carrying ontheir rear ends polishers 59, each polisher comprising a disk and thepolishing-surfaces of said disk being Hush. The reciprocatory slidingblock 60 is mounted in grooves or guideways 61, formed in the plates 4,and is caused to recede from the path of travel of the plate during itsdescent by means of the pivoted forked arm 62, one end thereofvbeingpivoted between spaced ears 63 on the reciprocatory block 60 and theother end engaging the pivot-bolt 64, projecting from the reciprocatorysliding block 58. The outer end of the forked arm 62 has spaced earsdisposed at right angles to the body thereof and has mounted betweenthem on a cross-pin the roller 65, which travels on the face of thecam-disk 66 on the shaft 6,7, and as the roller rides up on the hi hestpoint of the cam the inner ends of the orked arm are drawn forward,drawing the blocks carrying the polishers and rough-wipers awayv fromthe path of the plate as it starts to descend. The

cam-disk 66 is driven by the gear 51f`on the shaft 67'. I employ thespring 68 to, normally keep the reciprocatory rough Wiperand thereciprocal rotary polishers inthepath of the plate. I employ as arough-wiper a strip of fabric, such as cheese-cloth, and bring it intocontact with the plate in such a manner as to present a clean portionof; the cloth to the plate on each ascent thereof. I accomplish this bydriving the roller 70 through the gear 44 and keep the fabric taut atallI times by means of the friction-hub 71 and the adjustable frictionband l7 2. Rollers 7 3 -mounted in the spring-press arm 73a, contactwith and keep the fabric taut when the block 60 recedes. The belt 74runs over the grooved pulley 75 on the shaft 47 and the grooved pulleyon the shaft of the ink-feed roll 76, driving said roll, which receivesink from a fountain 77 and distributes it on` the 'l spring-pressedinking-roller 78. I mount the recessed disk 79 on the horizontal shaft42,

and on the periphery of said disk runs a roller 80, mounted on the lowerend of a rocking arm 81, which carries on its upper end` the ipowder-pad 82, provided with a wire fabric 1. In a power plate-printingpress, a reciprocal plank adapted to carry a plate, anautomatically-reciprocal polisher comprising a plurality ofconcurrently-rotatable disks havingtheir polishing-surfaces flush,automatically-reciprocal cleaning means and inking means, substantiallyas described.

2. In a power plate-printing press, a reciprocal plank adapted to carrya plate, an automatically-reciprocal polisher, comprising a plurality ofconcurrently-rotatable disks having their polishing-surfaces flush,automatically-reciprocal dusting means, automatically-reciprocalcleaning means and inking means, substantially as described. l

3. In a power plate-printing press, a reciprocal lank adapted to carry aplate, reciprocal `b ocks, an automatically-reciprocal polisher carriedby one 'of said blocks and comprising a plurality of rotatable diskshaving their polishing-surfaces flush, automaticallyreciprocal cleaningmeans carried by the other of saidblocks, and means connecting saidblocks for concurrent simultaneous re- .ciprocal movement, substantiallyas described.

4. In a power plate-printing press, a reciprocal' plank adapted to carrya plate, an auvtomatically-reciproc-ahpolisher, comprising a Vadapted tobe moved automatically across the face of said block, substantially asde- `scribed.

1isher comprising an automatical 5. In a power plate-printing press, areciprocal plank adapted to carry a plate, a poly-reciprocal iblock,rotatable shafts therein and polishers l on said shafts, and cleaningmeans comprising i an automatically-reciprocal block and a strip offabric adapted to be moved automatic- 5 ally across the face of-saidblock, substantially f as described.

ciprocable block having concurrently-rotatable polishers comprisingdisks havingl their polishing-surfaces flush, a reciprocable blocklocated below the first-mentioned block and IOO IIO

ISO

cable movement, means for reciprocating said blocks and dusting meansadapted to be automatically reciprocated across the faces of 15 saidpolisliers, substantially as described.`

Signed at the city of New York, in the county of New York and State ofNew York7 this 6th day of June, A. D. 1905.

HERMAN J. vSCHOEN.

Witnesses:

GEO. MCKITTRICK, A. R. APPLEMAN.

